Forecast not disaggregating properly

Question

Hi,
We calculate forecast on monthly level and disaggregating it to week level.
We follow Calendar year 4, 4 and 5 Weeks.
Year 2015 has 53 Weeks so in DEC 2015 we have 6 weeks. ( As per our design).
1. When our Monthly-Forecast Process Chain ran, for month "DEC 2015", forecast got disaggregated into 1st 4 weeks and the last 2 weeks were populated with "0".
Example:
Monthly
Dec-15
Monthly
6000
Weekly
1500
1500
1500
1500
0
0
2. Checked in Dev: when values entered in Development for DEC 2015 it is properly getting disaggregating into 6 weeks. It reflects that the disaggregation Macro is working correctly.
Example:
Monthly
Dec-15
Monthly
6000
Weekly
1000
1000
1000
1000
1000
1000
3. Secondly: When I ran the macro manually in Production for DEC 2015 and re-disaggregated the forecast it gets populated correctly to all weeks.
But in the next run of our Monthly-Forecast Process chain the "0"s were shifted to last 2 weeks of next month i.e. JAN 2016.
Example:
Monthly
Dec-15
Jan-16
Monthly
6000
5000
Weekly
1000
1000
1000
1000
1000
1000
2500
2500
0
0
Regards
Lalit

Answer 1

Hi Subash,
Yes we are using Fiscal Periods. As  I stated we follow a 4, 4, 5 weeks pattern in a year.
For Time based disaggregation we are using another key figure which is again based on another key figure for Time based disaggregation and for this we are calculating the proportions on the basis of Demand History Override ( manual entry)
Key Figure
Calculation type
Disag, KF
Time Based Disag.
Time Based Disag. KF
STAT
P
PROPFNL
K
TIMEFNL
TIMEFNL
S
K
PROPFNL
PROPFNL
P
APODPDANT
Regards